Book Image

Getting Started with Kubernetes - Third Edition

By : Jonathan Baier, Jesse White
Book Image

Getting Started with Kubernetes - Third Edition

By: Jonathan Baier, Jesse White

Overview of this book

Kubernetes has continued to grow and achieve broad adoption across various industries, helping you to orchestrate and automate container deployments on a massive scale. Based on the recent release of Kubernetes 1.12, Getting Started with Kubernetes gives you a complete understanding of how to install a Kubernetes cluster. The book focuses on core Kubernetes constructs, such as pods, services, replica sets, replication controllers, and labels. You will understand cluster-level networking in Kubernetes, and learn to set up external access to applications running in the cluster. As you make your way through the book, you'll understand how to manage deployments and perform updates with minimal downtime. In addition to this, you will explore operational aspects of Kubernetes , such as monitoring and logging, later moving on to advanced concepts such as container security and cluster federation. You'll get to grips with integrating your build pipeline and deployments within a Kubernetes cluster, and be able to understand and interact with open source projects. In the concluding chapters, you'll orchestrate updates behind the scenes, avoid downtime on your cluster, and deal with underlying cloud provider instability within your cluster. By the end of this book, you'll have a complete understanding of the Kubernetes platform and will start deploying applications on it.
Table of Contents (23 chapters)
Title Page
Dedication
Packt Upsell
Contributors
Preface
Index

Managing applications


At the time of this book's writing, new software has emerged that hopes to tackle the problem of managing Kubernetes applications from a holistic perspective. As application installation and continued management grows more complex, software such as Helm hopes to ease the pain for cluster operators creating, versioning, publishing, and exporting application installation and configuration for other operators. You may have also heard the term GitOps, which uses Git as the source of truth from which all Kubernetes instances can be managed.

While we'll jump deeper into Continuous Integration and Continuous Delivery (CI/CD) in the next chapter, let's see what advantages can be gained by taking advantage of package management within the Kubernetes ecosystem. First, it's important to understand what problem we're trying to solve when it comes to package management within the Kubernetes ecosystem. Helm and programs like it have a lot in common with package managers such as apt...